3 Answers
3

What you need to do is import the csv into excel as "text" so go to data - get external data - from text (2010) and select the csv file. The import wizard will allow you to select columns and treat them with specific formats, any column with a dash or plus can be treated as text and it will not be parsed into a formula.

Additionally, if the data is already in excel and you don't want any formula, do a ctrl+H to find and replace all = with nothing